This is my second attempt (ever) at processing LRGB data. Man, it's harder than narrowband! Don't know how you guys do it so well. Would have liked more colour data, but the weather is the weather.
Data is:
R: 4x420
G: 6x420
B: 7x420
L = 20x420, + a synthetic L created from the RGB.
The registered and calibrated RGB and "super L" data set is available
here If anyone wants to play with it.
Basic process was:
- Decon L
- Noise reduction on L using ATrousWaveletTransform
- Multiple HistogramTransformation passes on L
- Using image statistics get the median from the L, then use masked stretch on R/G/B images with a target background matching the L's median
- LRGBCombination using default settings
- ColourCalibration
- Couple of curves tweaks to the L "channel"
- HDRWavelets to lightness with lightness mask
- Couple of passes of LocalHistogramEqualization
- Boost saturation using curves with a mask to protect the background
- SCNR to get rid of the green stars.... green stars?
All in all, not that happy with it yet so I'll probably redo it another 50 times :-)
Edit: Just tweaked the colour balance a bit more since it was too yellow.